Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ffd32e7b63fbd97…

MALICIOUS

PDF

36.0 KB Created: 2021-06-20 02:32:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: db5dfc9b68ca600c384f3cab4beb67a0 SHA-1: 5e3bd6402fb44638f1690d348d3faca27f006fab SHA-256: 2ffd32e7b63fbd978dc876d186a50151cc757208ec87abfa142e19a71c529ba9
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains multiple links and references to game hacks and cheats, specifically for Roblox and Coin Master. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' indicates that the PDF links to a redirector for game hacks. The ML classifier also flagged this PDF as malicious with high confidence. The embedded URLs likely lead to malicious downloads or further phishing attempts.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://netcdn.co/app/431946152/roblox-hacks-for-mac-2021-game-hack PDF link annotation
    • http://www.pspmrsmkklawang.com/opac/repository/hoodie-t-shirt-roblox-free_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkklawang.com/opac/repository/coin-master-spin-hack-pc_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmkklawang.com/opac/repository/roblox-mm2-hack-unlimited-godlys_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkklawang.com/opac/repository/coin-master-free-spin-today_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmkklawang.com/opac/repository/roblox-exploit-download-free-no-virus_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkklawang.com/opac/repository/ajc-tech-free-roblox_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkklawang.com/opac/repository/game-give-free-robux_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkklawang.com/opac/repository/coin-master-free-spins-23-march-2021_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmkklawang.com/opac/repository/link-for-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmkklawang.com/opac/repository/free-roblox-games-for-girls_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkklawang.com/opac/repository/roblox-free-robux-800_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkklawang.com/opac/repository/roblox-assassin-knife-hack-2021_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkklawang.com/opac/repository/coin-master-game-free-spin-download_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmkklawang.com/opac/repository/roblox-robux-hack_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkklawang.com/opac/repository/free-admin-roblox-download_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkklawang.com/opac/repository/coin-master-hack-apk-free-download_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmkklawang.com/opac/repository/como-poner-hacks-en-roblox_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkklawang.com/opac/repository/btools-hack-roblox-lumber-tycoon-2_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkklawang.com/opac/repository/robux-free-hack-no-human-verification-2021-windows-10_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkklawang.com/opac/repository/robux-com-free_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000332b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x332B 22888 bytes
SHA-256: 85e558dcc12ac359c75827362175c31b63975c956624502bb4df54f786ff10ee
font_01_sfnt_off000066ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66AC 19416 bytes
SHA-256: 78a058cf8a49043df1ca2275b7718b436c55babf9f9e5f171fa33c85032f9b38

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